GSWA Perth Basin North Elevation Grid Geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSWA Perth Basin North Elevation Grid Geodetic is elevation data for the Perth Basin North, WA, 2011. This survey was acquired under the project No. 1242 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 87m). This grid contains the ground elevation relative to the geoid for the Perth Basin North, WA, 2011. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

数字高程数据（Digital Elevation Data）记录了地球物理勘探过程中采集并经处理的点位或测线数据所表征的地形高程变化。本GSWA珀斯盆地北部大地测量高程网格数据集为2011年西澳大利亚州（WA）珀斯盆地北部的高程数据，该数据集采集自西澳地质调查局第1242号项目。该网格的像元尺寸为0.00083度（约87米），包含2011年西澳珀斯盆地北部相对于大地水准面（geoid）的地面高程数据，其表征地球表面某点位至大地水准面的垂直距离。数据单位为米。经处理的数据已由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合既定使用需求。